MATLAB: I have 33 Matrix. I have to save these matrix into 31 form means i have to save only (1,3) (2,3) and (3,3). other (1,1), (1,2)………(2,3) remove.

cell arraysMATLABmatrix arraymatrix manipulation

 S = (:,:,1:20)

Best Answer

S2 = S(:,3,:);

This indexing means something like (all rows, third column only, all 3D). This means S2 will be a 3x1x20 array of type double.

Hope this helps.

Related Solutions

MATLAB: 3*3 matched filter

Try this:

blurredImage = conv2(single(grayImage), ones(3)/9);
imshow(blurredImage, []);
% Find where the image was all 1's in a 3x3 box.
% The output image will be exactly 1 in that situation.
matchingRegions = abs(blurredImage - 1) < 0.0001;
% Use axes() or figure() to switch to a new axes if you want.
imshow(matchingRegions, []);

You might also want to look at normxcorr2(). I have a demo for that if you want it.

MATLAB: How can enlarge a matrix

If you have MATLAB R2015a (or more recent) then you can use repelem.

Otherwise you could try this FEX submission:

http://de.mathworks.com/matlabcentral/fileexchange/24536-expand

Or else you have to calculate it yourself, the easiest way is to use kron:

>> m = [1,2;3,4];
>> n = 5;
>> kron(m,ones(n))
ans =
     1     1     1     1     1     2     2     2     2     2
     1     1     1     1     1     2     2     2     2     2
     1     1     1     1     1     2     2     2     2     2
     1     1     1     1     1     2     2     2     2     2
     1     1     1     1     1     2     2     2     2     2
     3     3     3     3     3     4     4     4     4     4
     3     3     3     3     3     4     4     4     4     4
     3     3     3     3     3     4     4     4     4     4
     3     3     3     3     3     4     4     4     4     4
     3     3     3     3     3     4     4     4     4     4

Best Answer

Related Solutions

MATLAB: 3*3 matched filter

MATLAB: How can enlarge a matrix

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